(0 19 1)(2 17 15 14 6)(3 20 5)(4 9 7)(8 12 10)(11 21 18 16 13)
ALLOWS (11/8)-SEQUENCE
1: (1 16 19)

(0 19 13 11 21 18 16)(1)(2 17 15 14 6)(3 20 5)(4 9 7)(8 12 10)
2: (11 21 18)

(0 19 13 11 16)(1)(2 17 15 14 6)(3 20 5)(4 9 7)(8 12 10)(18)(21)
3: (2 17 15)

(0 19 13 11 16)(1)(2 14 6)(3 20 5)(4 9 7)(8 12 10)(15)(17)(18)(21)
4: (0 19 13)

(0 11 16)(1)(2 14 6)(3 20 5)(4 9 7)(8 12 10)(13)(15)(17)(18)(19)(21)